Comparing encoding mechanisms in realistic virtual reality and conventional 2D laboratory settings: Event-related potentials in a repetition suppression paradigm
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https://doi.org/10.48693/455
https://doi.org/10.48693/455
| Title: | Comparing encoding mechanisms in realistic virtual reality and conventional 2D laboratory settings: Event-related potentials in a repetition suppression paradigm |
| Authors: | Johnsdorf, Marike Kisker, Joanna Gruber, Thomas Schöne, Benjamin |
| ORCID of the author: | https://orcid.org/0000-0002-5826-264X https://orcid.org/0000-0001-7926-7426 |
| Abstract: | Although the human brain is adapted to function within three-dimensional environments, conventional laboratory research commonly investigates cognitive mechanisms in a reductionist approach using two-dimensional stimuli. However, findings regarding mnemonic processes indicate that realistic experiences in Virtual Reality (VR) are stored in richer and more intertwined engrams than those obtained from the conventional laboratory. Our study aimed to further investigate the generalizability of laboratory findings and to differentiate whether the processes underlying memory formation differ between VR and the conventional laboratory already in early encoding stages. Therefore, we investigated the Repetition Suppression (RS) effect as a correlate of the earliest instance of mnemonic processes under conventional laboratory conditions and in a realistic virtual environment. Analyses of event-related potentials (ERPs) indicate that the ERP deflections at several electrode clusters were lower in VR compared to the PC condition. These results indicate an optimized distribution of cognitive resources in realistic contexts. The typical RS effect was replicated under both conditions at most electrode clusters for a late time window. Additionally, a specific RS effect was found in VR at anterior electrodes for a later time window, indicating more extensive encoding processes in VR compared to the laboratory. Specifically, electrotomographic results (VARETA) indicate multimodal integration involving a broad cortical network and higher cognitive processes during the encoding of realistic objects. Our data suggest that object perception under realistic conditions, in contrast to the conventional laboratory, requires multisensory integration involving an interconnected functional system, facilitating the formation of intertwined memory traces in realistic environments. |
| Citations: | Johnsdorf M, Kisker J, Gruber T and Schöne B (2023): Comparing encoding mechanisms in realistic virtual reality and conventional 2D laboratory settings: Event-related potentials in a repetition suppression paradigm. Front. Psychol. 14:1051938. |
| URL: | https://doi.org/10.48693/455 https://osnadocs.ub.uni-osnabrueck.de/handle/ds-2024012510303 |
| Subject Keywords: | repetition suppression; ERPs; EEG; virtual reality; encoding; memory |
| Issue Date: | 27-Jan-2023 |
| License name: | Attribution 4.0 International |
| License url: | http://creativecommons.org/licenses/by/4.0/ |
| Type of publication: | Einzelbeitrag in einer wissenschaftlichen Zeitschrift [Article] |
| Appears in Collections: | FB08 - Hochschulschriften Open-Access-Publikationsfonds |
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|---|---|---|---|---|
| Johnsdorf_etal_fpsyg-14-1051938_2023.pdf | Article | 3,83 MB | Adobe PDF | Johnsdorf_etal_fpsyg-14-1051938_2023.pdf  View/Open |
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